Unexpected effects of inorganic phosphate glass on crystallization and thermo-rheological behavior of polyethylene terephthalate

Kim, Kyoungtae; Rahimi, Shahab Kashani; Alam, Todd M.; Sorte, Eric G.; Otaigbe, Joshua U.

doi:10.1016/j.polymer.2018.08.066

Title: Unexpected effects of inorganic phosphate glass on crystallization and thermo-rheological behavior of polyethylene terephthalate

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Abstract

The effects of ultra-low glass transition temperature (T_g) phosphate glass (Pglass) on the thermal, morphological, rheological, mechanical, and crystallization properties of hybrid Pglass/poly(eththylene terephthalate)(PET) were investigated. Nano- and micro-scale distribution of the Pglass in the PET polymer matrix was observed. The polydispersed Pglass in the PET matrix functioned as a nucleation agent, resulting in increasing crystallization temperature. The Pglass in the PET matrix decreased the T_g, indicating a plasticizing effect of the Pglass in the hybrids that was confirmed by the significantly decreased complex viscosity of the PET matrix. In addition, with increasing temperature, a non-terminal behavior of the viscoelastic properties occurred due to the hybrid structural changes and improved miscibility of the hybrid components. In conclusion, the obtained solid-state variable temperature ³¹P and ¹H NMR spectroscopy results showed strong Pglass concentration dependency of the interactions at the PET-Pglass interface.

Authors:

Kim, Kyoungtae ^[1]; Rahimi, Shahab Kashani ^[1]; Alam, Todd M. ^[2]; Sorte, Eric G. ^[2]; Otaigbe, Joshua U. ^[1]

The Univ. of Southern Mississippi, Hattiesburg, MS (United States)
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Publication Date:: Tue Sep 04 00:00:00 EDT 2018

Research Org.:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Org.:: Not funded; USDOE

OSTI Identifier:: 1474124

Report Number(s):: SAND-2018-8016J
Journal ID: ISSN 0032-3861; 666076

Grant/Contract Number:: AC04-94AL85000

Resource Type:: Accepted Manuscript

Journal Name:: Polymer

Additional Journal Information:: Journal Volume: 154; Journal Issue: C; Journal ID: ISSN 0032-3861

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; Polyethylene terephthalate; Phosphate glass; Hybrids; Crystallization and nucleation; Rheology; Solid state NMR

Citation Formats


                    Kim, Kyoungtae, Rahimi, Shahab Kashani, Alam, Todd M., Sorte, Eric G., and Otaigbe, Joshua U. Unexpected effects of inorganic phosphate glass on crystallization and thermo-rheological behavior of polyethylene terephthalate.  United States: N. p., 2018. 
Web.  doi:10.1016/j.polymer.2018.08.066.

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                    Kim, Kyoungtae, Rahimi, Shahab Kashani, Alam, Todd M., Sorte, Eric G., & Otaigbe, Joshua U. Unexpected effects of inorganic phosphate glass on crystallization and thermo-rheological behavior of polyethylene terephthalate.  United States.  https://doi.org/10.1016/j.polymer.2018.08.066

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                    Kim, Kyoungtae, Rahimi, Shahab Kashani, Alam, Todd M., Sorte, Eric G., and Otaigbe, Joshua U. Tue .  
"Unexpected effects of inorganic phosphate glass on crystallization and thermo-rheological behavior of polyethylene terephthalate".  United States.  https://doi.org/10.1016/j.polymer.2018.08.066.  https://www.osti.gov/servlets/purl/1474124.

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@article{osti_1474124,

  title        = {Unexpected effects of inorganic phosphate glass on crystallization and thermo-rheological behavior of polyethylene terephthalate},

  author       = {Kim, Kyoungtae and Rahimi, Shahab Kashani and Alam, Todd M. and Sorte, Eric G. and Otaigbe, Joshua U.},

  abstractNote = {The effects of ultra-low glass transition temperature (Tg) phosphate glass (Pglass) on the thermal, morphological, rheological, mechanical, and crystallization properties of hybrid Pglass/poly(eththylene terephthalate)(PET) were investigated. Nano- and micro-scale distribution of the Pglass in the PET polymer matrix was observed. The polydispersed Pglass in the PET matrix functioned as a nucleation agent, resulting in increasing crystallization temperature. The Pglass in the PET matrix decreased the Tg, indicating a plasticizing effect of the Pglass in the hybrids that was confirmed by the significantly decreased complex viscosity of the PET matrix. In addition, with increasing temperature, a non-terminal behavior of the viscoelastic properties occurred due to the hybrid structural changes and improved miscibility of the hybrid components. In conclusion, the obtained solid-state variable temperature 31P and 1H NMR spectroscopy results showed strong Pglass concentration dependency of the interactions at the PET-Pglass interface.},

  doi          = {10.1016/j.polymer.2018.08.066},

  journal      = {Polymer},

  number       = C,

  volume       = 154,

  place        = {United States},

  year         = {Tue Sep 04 00:00:00 EDT 2018},

  month        = {Tue Sep 04 00:00:00 EDT 2018}

}

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